SOLUTION: In how many ways can the letters of the word "ECONOMICS" be arranged if the letters O and C are identical

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Question 775889: In how many ways can the letters of the word "ECONOMICS" be arranged if the letters O and C are identical
Answer by oscargut(2103)   (Show Source): You can put this solution on YOUR website!
9!/(2!2!)= 362880/4 = 90720
Answer: 90720
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